So, out of the people who have completed the Demo, how long did it take you?
It took me about 1 hr, and I didn't even look at the help posts here! I got stuck with those lava things that make you go weeeee forever!!
Well, after beating I must say, this game KICKS!!!

I got stuck in two places, the initial bit where I had to move the block (I pretty much had the puzzle figured out, I just had to figure out the controls) and the first jeep jump (I didn't know you could hold down Shift to make the jeep go faster). Other than that I finished it fairly easily.